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Multivariate Analysis of Risk Factors Predicting Grade ≥2 RP
| Characteristic | Beta Coefficient | Odds Ratio (95% CI) | P-value |
|---|---|---|---|
| Smoking Status | 0.176 | ||
| FEV1 | 0.078 | ||
| Total T cell count after RT | 0.571 | ||
| CD8+ T cell count after RT | 0.003 | 1.003 (1.000–1.005) | 0.044 |
| Total B cell count after RT | 0.205 | ||
| CD4+ /CD8+ ratio after RT | 0.920 |
Abbreviations: RP, radiation pneumonitis; RT, radiotherapy.
